i always use 2 copies of major undertakings like this, because crashes often result in corrupted save files, especially if the crash occurs during a save/load operation. listen - before you start this again, try something for me. go HERE download docmemory 2.0, its free. make the boot disk using the setup utility, and then reboot your computer with the disk in your drive. run the test - no need to run the hardcore burn-in test, just run the quick test. let it run the full course, until it says 'Passed = 1 or Fail = 1' in the lower right. this will run several diagnostic tests on your RAM and check it for errors. chances are, this is a problem with poser, and not your memory. but faulty memory is a very common cause of problems for computers, and the freezes, crashes and corrupted saves/downloads it creates often get blamed on other things because RAM is the last thing people suspect. it should, however, be the FIRST thing you test if your computer is running unstable, and its probably the easiest piece of hardware to check as well. trust me, do it. everyone else reading this thread should to, only takes a few minutes to do (depending on how much memory is installed), and bad RAM can cause so many problems. i once bought two brand new 512mb sticks of sdram and installed them in my new system. my downloads were being corrupted, i was losing save files, etc. id work on a large file in photoshop, save it, and never be able to open it again becase it was corrupted. i checked EVERYTHING, this went on for a week. checked the NICs, HDDs, m/b, reinstalled windows & other software, etc etc. i never suspected my RAM since i had JUST bought it, brand new. anyways, hope this helps. and dont put it off until later - think of all the work you could lose because of a faulty stick of memory :( cheers, -gabriel